<%@page import="java.util.Arrays"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String h[]=request.getParameterValues("hobby");
for(int a=0; a<h.length;a++){
	out.print(h[a]+", ");
}
%>
<hr/>
<%=Arrays.toString(h) %>

<h2>JavaBean을 사용한 체크박스(배열)처리</h2>
<jsp:useBean id="ttt" class="test.Test2" scope="page" />
<jsp:setProperty property="*" name="ttt"/>

Result = <%=ttt.output2() %>
</body>
</html>